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LTC3407-4 Datasheet(PDF) 4 Page - Linear Technology |
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LTC3407-4 Datasheet(HTML) 4 Page - Linear Technology |
4 / 16 page LTC3407-4 4 34074f Efficiency vs Load Current Efficiency vs Load Current Load Regulation TYPICAL PERFOR A CE CHARACTERISTICS Reference Voltage vs Temperature RDS(ON) vs Input Voltage RDS(ON) vs Temperature Efficiency vs Input Voltage Oscillator Frequency Deviation vs Supply Voltage Oscillator Frequency vs Temperature INPUT VOLTAGE (V) 2 50 55 65 70 75 100 85 3 4 34074 G04 60 90 95 80 5 6 LOAD = 100mA LOAD = 800mA LOAD = 1mA LOAD = 10mA VOUT = 1.8V Burst Mode OPERATION 2.5 2.4 2.3 2.2 2.1 2.0 TEMPERATURE ( °C) –50 25 75 34074 G05 –25 0 50 100 125 VIN = 3.6V 10 8 6 4 2 0 –2 –4 –6 –8 –10 SUPPLY VOLTAGE (V) 2 34074 G06 3 45 6 0.615 0.610 0.605 0.600 0.595 0.590 0.585 TEMPERATURE ( °C) –50 25 75 34074 G07 –25 0 50 100 125 VIN = 3.6V VIN (V) 1 500 450 400 350 300 250 200 46 34074 G08 2 3 57 MAIN SWITCH SYNCHRONOUS SWITCH TEMPERATURE ( °C) –50 550 500 450 400 350 300 250 200 150 100 25 75 34074 G09 –25 0 50 100 150 125 MAIN SWITCH SYNCHRONOUS SWITCH VIN = 3.6V VIN = 4.2V VIN = 2.7V LOAD CURRENT (mA) 1 80 90 100 10 100 1000 LTC1273/75/76 • F25 70 75 85 95 65 60 VIN = 2.7V VIN = 3.6V VIN = 4.2V VOUT = 2.5V Burst Mode OPERATION NO LOAD ON OTHER CHANNEL LOAD CURRENT (mA) 1 90 100 10 100 1000 34074 G11 80 70 60 Burst Mode OPERATION PULSE SKIP MODE VIN = 3.6V, VOUT = 1.8V NO LOAD ON OTHER CHANNEL LOAD CURRENT (mA) 1 0 2 4 10 100 1000 34074 G12 –2 –1 1 3 –3 –4 Burst Mode OPERATION PULSE SKIP MODE VIN = 3.6V, VOUT = 1.8V NO LOAD ON OTHER CHANNEL |
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